Implantable fiducial marker



FIG. 1 is a perspective view of an implantable fiducial marker showing our new design;

FIG. 2 is a front elevational view thereof, which is identical to the rear elevational view thereof;

FIG. 3 is a top plan view thereof, which is identical to the bottom plan view thereof; and,

FIG. 4 is a left side elevational view thereof, which is identical to the right side elevational view thereof. 

CLAIM The ornamental design for an implantable fiducial marker, as shown and described. 